JPH0537373U - Caulking nozzle - Google Patents

Abstract

(57) [Summary] [Purpose] After injecting caulking material to a place where caulking is to be performed intermittently, such as a workpiece with a complicated shape and its corners,
It is an object of the present invention to provide a caulking application nozzle provided with a stretcher capable of leveling the caulking material. A nozzle (3) for injecting a caulking material (11) onto a covering portion of a work (10) is detachably attached along the outer periphery of the nozzle (3) along one side of a tongue (4) having an elastic force,
The other side of the tongue piece 4 has a leveling surface 4c for extending the caulking material 11 by the movement of the nozzle 3, and a caulking application provided with a stretching tool in which the tip of the tongue piece 4 projects from the tip of the nozzle 3. It is a nozzle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a caulking application nozzle used when a caulking material is applied by a robot or manually to a work having a relatively complicated shape such as an automobile body.

[0002]

[Prior Art]

 Conventionally, when applying a caulking material using a caulking gun, as shown in FIG. 6, a leveling tool 24 is attached to a main body 21 of the caulking gun 20 via a mounting screw 22 and used. The leveling tool 24 has a supporting arm 25 of a fixed length and a leveling member 26 fixed to the tip of the supporting arm 25, and the caulking injected from the nozzle 23 of the caulking gun 20. The material 27 is used so as to be leveled sequentially by the leveling tool 24. (Actual No. 61-61063).

Further, as a method of applying a caulking material to a work having a relatively complicated shape, such as a car body of an automobile, a nozzle of the caulking material is applied to a portion to which the caulking material is applied by a robot operation or manual work. Then, the caulking material injected by hand was stretched and smoothed using a spatula or a brush.

[0004]

[Problems to be solved by the device]

 However, the one shown in Japanese Utility Model Laid-Open No. 61-61063 described above is effective for a coating work in which a caulking material is continuously injected and leveled on a relatively flat work, but it is effective for an automobile body. When applying a caulking material to a work having a relatively complicated shape such as, for example, an intermittent hole, the leveling tool provided in the caulking gun is installed at a position away from the nozzle. The actual situation is that the coating operation cannot be performed because it comes into contact with other parts of the vehicle body. If the caulking gun is used in an unreasonable posture, the leveling work of the caulking material is not uniform, and the leveling tool is damaged.

Further, the leveling member of the leveling tool is difficult to adjust the mounting angle of the support arm and the like, and a heavy load is applied to the mounting portion between the support arm and the leveling member during use, which complicates the configuration. Will end up. Further, when the caulking material injected onto the work is manually stretched with a spatula or a brush, it requires double man-hours and labor. The present invention has been made in view of the above problems, and can even out the injected caulking material even if the work has a complicated shape or its corners, and An object of the present invention is to provide a caulking application nozzle equipped with a stretching tool that has a simple structure and can be easily manufactured.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is a caulking application nozzle for injecting caulking material to a coating portion of a work, wherein one side of a tongue having elasticity at the tip of the nozzle extends along the outer peripheral surface of the nozzle. As described above, the other side of the tongue piece is a leveling surface that extends the caulking material by the movement of the nozzle, and the tip of the tongue piece is provided with a stretcher projecting from the tip of the nozzle. It was configured as a coating nozzle.

[0007]

[Action]

 By the above means, the nozzle is set vertically at a position slightly higher than the surface of the work to which the caulking material is applied, and the caulking material is ejected from the tip of this nozzle. Then, the nozzle is moved so that the tongue attached to the nozzle does not come into contact with the caulking material ejected from the nozzle. Then, the tip of the nozzle is brought closer to the work side and the tip of the tongue piece is slightly pressed against the work, and the nozzle is moved to the caulking material side with the other side of the tongue piece facing the caulking material. The caulking material is uniformly stretched and leveled on the other side of the tongue formed as a leveling surface.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a state in which a stretching tool is attached to a caulking nozzle body, FIG. 2 is a rear view showing a state in which a stretching tool is attached to a caulking nozzle body, and FIG. 3 explains an operation of a caulking application nozzle. 4A and 4B are side sectional views showing a state where the caulking material is injected and stretched, and FIG. 5 is a perspective view of the stretching tool.

The caulking nozzle body 1 is detachably fixed to an arm 2 of a robot or the like with screws or the like. The nozzle 3 is screwed to the tip of the caulking nozzle body 1. Further, a tongue piece 4 as a stretching tool is inserted and attached to the tip of the caulking nozzle body 1 so that one side of the tongue piece 4 extends along the outer circumference of the nozzle 3, and is fastened by a hose band 5.

Further, as shown in FIG. 2, a marking 6 and a marking 7 are printed on the outer peripheral surface of the caulking nozzle body 1 on the front end side as marks for indicating the moving direction of the arm 2. The marking 7 indicates the leveling direction of the caulking material, and the leveling surface 4c of the tongue 4 is fitted to the position where the marking 7 is marked. Further, the tightening screw of the hose band 5 is fitted at the position where the marking 6 is marked.

As shown in FIG. 5, the tongue piece 4 has an annular mounting portion 4 a on the base end side thereof, and the mounting portion 4 a makes it easy to insert the tongue piece 4 into the nozzle 3, or A notch 4b is formed in order to improve the adhesion between the mounting portion 4a and the nozzle 3 when the tongue piece 4 is fastened to the nozzle 3. A leveling surface 4c, which is the leveling portion of the caulking material 11 on the other side, is formed on the tip side of the tongue piece 4.

The width L of the leveling surface 4c is formed slightly smaller than the outer diameter D of the nozzle 3 (inner diameter of the mounting portion 4a), and as shown in FIG. The nozzle 3 is attached so as to project slightly from the tip. It is desirable that the projecting dimension by which the tip of the leveling surface 4c projects from the tip of the nozzle 3 is slightly smaller than the distance between the work and the tip of the nozzle 3 when the caulking material is injected onto the work surface. Further, at the tip of the leveling surface 4c, as shown in FIG. 5, corner portions are cut off to form inclined portions 4d, 4d.

The tongue piece 4 is formed of an elastic member and has a property of being hard to adhere to the caulking material. For example, it is formed by processing a commercially available vinyl hose or the like. Is also possible. The one using a vinyl hose is extremely inexpensive and can be easily manufactured, so that there is an advantage that the maintenance cost of the caulking work is small.

Next, the operating state of the caulking coating nozzle equipped with this stretching tool will be described with reference to FIGS. 3 and 4. First, as shown in FIG. 3, the nozzle 3 is moved to a position (A) where the caulking material is to be injected onto the work 10, and the caulking material 11 is injected in an appropriate amount. An arm 2 such as a robot capable of moving the nozzle 3 in an arbitrary direction enables the nozzle 3 to rotate, tilt and erect, and move vertically. Then, the nozzle 3 is moved to the position (B) by the movement of the arm 2 and is tilted to one side, and the rear surface side (the other side of the tongue piece) of the leveling surface 4c is pressed against the work 10 as shown by an imaginary line. While moving to the position indicated by (C), the caulking material 11 is stretched and leveled.

When these coating operations are completed, the nozzle 3 is moved to the next work position, the above operation is performed, and the caulking material coating operation is sequentially repeated. As shown in FIG. 4A, the caulking material 11 is leveled from the state shown by the phantom line to the state shown by the solid line. Therefore, as shown in FIG. Even if the dust sealer 12 is coated on the caulking material 11 in the process, no gaps or air bubbles are generated between the caulking material 11, the dust sealer 12 and the work 10 to cause water leakage or rust. There is no.

The present invention is not limited to the above embodiment, and the shape of the tongue and the method of attaching the tongue are not limited to those described above, for example. Further, in the above-described embodiment, the caulking nozzle has been described as being attached to the arm of a robot or the like, but it may be detachably attached to the nozzle of a manual caulking gun via an attaching tool for use. Of course, various modifications can be made without departing from the scope of the invention.

[0017]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects. Since the tongue piece has a simple structure, it can be manufactured very inexpensively and easily. This makes it easier to perform coking application work to evenly apply a caulking material to a work with a complicated shape and its corners, and also to enable the robot to operate by itself. Can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a stretching tool is attached to a caulking nozzle body.

FIG. 2 is a rear view of the caulking nozzle body with a stretcher attached.

FIG. 3 is a side view illustrating the operation of a caulking coating nozzle.

4A and 4B are side sectional views showing a state in which a caulking material is applied and stretched.

FIG. 5 is a perspective view of a stretcher.

FIG. 6 is a side view showing a conventional caulking coating nozzle.

[Explanation of symbols]

 1 Caulking Nozzle Main Body 2 Robot Arm 3 Nozzle 4 Tongue (Stretcher) 4c Leveling Surface 5 Hose Band 10 Work 11 Caulking Material

Claims (1)

[Scope of utility model registration request] 1. A caulking application nozzle for injecting a caulking material onto a work coating portion, the tip of the nozzle being detachably attached so that one side of a resilient tongue is along the outer peripheral surface of the nozzle, The other side of the tongue is a leveling surface for stretching the caulking material by the movement of the nozzle, and the tip of the tongue is provided with a stretching tool protruding from the tip of the nozzle. nozzle.